oj.uz

Submission #245377

# Submission time Handle Problem Language Result Execution time Memory
245377 2020-07-06T07:52:09 Z kostia244 Chameleon's Love (JOI20_chameleon) C++17
100 / 100
 41 ms 512 KB 
#include "chameleon.h"
#include <bits/stdc++.h>
using namespace std;
using vi = vector<int>;
vector<int> merge(vector<int> a, vector<int> b) {
	for(auto i : b) a.push_back(i);
	return a;
}
bool add(vector<int> x, vector<int> v) {
	for(auto i : v) x.push_back(i);
	return x.size()<=500 && Query(x) == x.size();
}
vector<int> seg(vector<int> v, int l, int r) {
	vector<int> res;
	while(l <= r) res.push_back(v[l++]);
	return res;
}
vector<int> pref(vector<int> v, int x) {
	return seg(v, 0, x);
}
void Solve(int n) {
	vector<vi> g(2*n+1);
	vi t[4];
	for(int i = 1; i <= 2*n; i++) {
		int x = 0;
		while(x < 3 && !add(t[x], {i})) x++;
		t[x].push_back(i);
	}
	
	for(int i = 4; i-- > 1;) {
		//cout << i << " " << t[i].size() << "WTFWTF\n";
		for(int v, _v = 0; _v < t[i].size(); _v++) {
			v = t[i][_v];
			//cout << v << "Here" << endl;
			int j = i-1, f = 0, it = 0;
			while(j >= 0 && g[v].size() < 3) {
				for(int z = 1<<9; z>>=1;)
					if(f+z-1 < t[j].size() && add(seg(t[j],  f, f+z-1), {v})) f += z;
				if(f == t[j].size()) {
					//cout << "Bye\n";
					--j;
					++it;
					f = 0;
					continue;
				}
				
				g[v].push_back(t[j][f]);
				g[t[j][f]].push_back(v);
			
				//cout << v << " --- " << j << " / " << f << " " << t[j][f] << '\n';
			
				++f;
				if(i == 3) j--, f = 0;
				if(i == 2 && j && (it == 1 || add(seg(t[j], f, (int)t[j].size()-1), {v}))) j--, f = 0;
				
				++it;
			}
		}
		//cout <<"Still not dead\n";
	}
	
	set<pair<int, int>> bad;
	for(int i = 1; i <= 2*n; i++) {
		if(g[i].size() == 1) continue;
		if(Query({g[i][0], g[i][1], i}) == 1) bad.insert(minmax(g[i][2], i));
		else if(Query({g[i][0], g[i][2], i}) == 1) bad.insert(minmax(g[i][1], i));
		else bad.insert(minmax(g[i][0], i));
	}
	for(int i = 1; i <= 2*n; i++) {
		while(bad.count(minmax(i, g[i].back()))) g[i].pop_back();
		if(i < g[i].back())
		Answer(i, g[i].back());
	}
}

Compilation message

chameleon.cpp: In function 'bool add(std::vector<int>, std::vector<int>)':
chameleon.cpp:11:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  return x.size()<=500 && Query(x) == x.size();
                          ~~~~~~~~~^~~~~~~~~~~
chameleon.cpp: In function 'void Solve(int)':
chameleon.cpp:32:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int v, _v = 0; _v < t[i].size(); _v++) {
                      ~~~^~~~~~~~~~~~~
chameleon.cpp:38:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
      if(f+z-1 < t[j].size() && add(seg(t[j],  f, f+z-1), {v})) f += z;
         ~~~~~~^~~~~~~~~~~~~
chameleon.cpp:39:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     if(f == t[j].size()) {
        ~~^~~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 26 ms 512 KB Output is correct
4 Correct 26 ms 512 KB Output is correct
5 Correct 25 ms 384 KB Output is correct
6 Correct 26 ms 512 KB Output is correct
7 Correct 26 ms 384 KB Output is correct
8 Correct 27 ms 384 KB Output is correct
9 Correct 25 ms 384 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 4 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 6 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 6 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 39 ms 436 KB Output is correct
4 Correct 39 ms 384 KB Output is correct
5 Correct 40 ms 504 KB Output is correct
6 Correct 36 ms 384 KB Output is correct
7 Correct 37 ms 384 KB Output is correct
8 Correct 36 ms 384 KB Output is correct
9 Correct 36 ms 384 KB Output is correct

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 26 ms 512 KB Output is correct
4 Correct 26 ms 512 KB Output is correct
5 Correct 25 ms 384 KB Output is correct
6 Correct 26 ms 512 KB Output is correct
7 Correct 26 ms 384 KB Output is correct
8 Correct 27 ms 384 KB Output is correct
9 Correct 25 ms 384 KB Output is correct
10 Correct 4 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 4 ms 384 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 4 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 4 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 6 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 6 ms 384 KB Output is correct
27 Correct 5 ms 384 KB Output is correct
28 Correct 5 ms 384 KB Output is correct
29 Correct 4 ms 384 KB Output is correct
30 Correct 39 ms 436 KB Output is correct
31 Correct 39 ms 384 KB Output is correct
32 Correct 40 ms 504 KB Output is correct
33 Correct 36 ms 384 KB Output is correct
34 Correct 37 ms 384 KB Output is correct
35 Correct 36 ms 384 KB Output is correct
36 Correct 36 ms 384 KB Output is correct
37 Correct 41 ms 452 KB Output is correct
38 Correct 26 ms 384 KB Output is correct
39 Correct 40 ms 460 KB Output is correct
40 Correct 40 ms 384 KB Output is correct
41 Correct 40 ms 504 KB Output is correct
42 Correct 25 ms 384 KB Output is correct
43 Correct 37 ms 504 KB Output is correct
44 Correct 41 ms 384 KB Output is correct
45 Correct 40 ms 384 KB Output is correct